A guy walked into a bar and ordered a glass of white wine. He took a drink of the wine, then tossed the rest into the bartender’s face. Before the bartender could recover from the surprise, the man began wailing.

“I’m sorry,” he said. “I’m really sorry. I keep doing that to bartenders. I can’t tell you how upsetting it is to have a compulsion like this.” Read the punchline!